About WattDollar
WattDollar answers one question: what does it cost to run this thing? It gives the answer immediately, without an account, an email address or a location.
What it is
A free calculator for the electricity cost of household appliances and EV charging, plus 54 appliance-specific pages that explain what drives that cost and what actually reduces it. The arithmetic runs in your browser. There is no account system and no database of user input, because the product does not need one.
Who publishes it
WattDollar is published and maintained by its operator as an independent site. It is not affiliated with any utility, manufacturer, retailer or trade body, and no company has editorial input into what appears here. Editorial responsibility for every page rests with the publisher; corrections come to corrections@watt-dollar.com and general enquiries to ownership@watt-dollar.com.
How it is paid for
Advertising, through Google AdSense, and potentially affiliate commission on product links. Both are disclosed: see the affiliate disclosure and the privacy notice. Neither changes a number the calculator produces, and no advertiser or partner sees what you type.
What it deliberately does not do
- No account, no email wall. The answer comes first.
- No live rate lookup. The price table is baked into the site at build time, so there is no request to a rate service carrying your page view with it, and nothing to break when a third-party API does.
- No precise location. The site never asks for the geolocation API. You pick a region if you want one.
- No invented authority. No star ratings, no review counts, no fabricated testimonials. Sources and vintages are stated on every calculator; where a figure is a carried-forward estimate rather than a confirmed one, the page says so.
Sister sites
WattDollar is one of three energy-cost tools by the same publisher: Dump the Pump compares the running cost of petrol against electric driving, and SolarDime works out whether rooftop solar pays back where you live. They share this site's approach: give the answer, show the assumptions, sell nobody's data.